Answer:
this makes no since so i cant help you here sorry
We do not feel the gravitational forces from objects other than the Earth because they are weak.
Answer:
Fracturing can emit seismic waves through the ground.
Explanation:
I believe the answer is seismic, I've studied this before.
It's about 6 minutes, as I seem to recall. Sort of the time for the earth to go into shadow darkness when there's an eclipse ???